"yaoi = drawings" at the end completely sidestepped the point of it because you can rather obviously express shounen ai in drawing. How wouldn't you understand that there's a line where things aren't porn and just cute for fangirls to squeal about

So, could somebody please explain to me what the fuck is up with people liking Sonic so much?

He's made to be easy to draw, and all the official canon characters are pretty much colours and patterns slapped onto a template body. Makes it really, really easy to make ORIJINUL DONUT STEEL characters.